Determination of low levels of free fibres of chrysotile in contaminated soils by X-ray diffraction and FTIR spectroscopy

被引：36

作者：

Foresti, E

Gazzano, M

Gualtieri, AF

Lesci, IG

Lunelli, B

Pecchini, G

Renna, E

Roveri, N

机构：

[1] Alma Mater Studiorum Univ, Dipartimento Chim G Ciamician, I-40126 Bologna, Italy

[2] CNR, ISOF, I-40126 Bologna, Italy

[3] Univ Modena & Reggio Emilia, Dipartimento Sci Terra, I-41100 Modena, Italy

[4] ARPA, Sez Prov Reggio Emilia, I-42100 Reggio Emilia, Italy

来源：

ANALYTICAL AND BIOANALYTICAL CHEMISTRY | 2003年 / 376卷 / 05期

关键词：

asbestos; chrysotile; x-ray diffraction; FTIR; pollution; environment;

D O I：

10.1007/s00216-003-1965-3

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A new analytical method for the determination of low levels (0.01-1 wt%) of free fibres of chrysotile in contaminated clayey, sandy and sandy-organic soils is described. The detection limit of 0.01 wt% is reached with an enrichment of free fibres of chrysotile in the sample using a standard laboratory elutriator for sedimentation analysis. The chrysotile quantitative determination is performed both by X-ray powder diffraction, using the internal standard and reference intensity ratio methods, and by Fourier-transform infrared absorption spectroscopy. The procedure can be successfully applied to different soils after removal, by a thermal treatment, of the matrix components which can interfere. This straightforward method fulfils the request of public institutions and private companies for an appropriate quantitative determination of chrysotile-free fibres in contaminated soils.

引用

页码：653 / 658

页数：6

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